Figured Bass extenders syntax

[Bertrand Bordage]

Hi all,

I am currently working on some huge figured bass projects and there's something truely annoying and quite unnatural:

when using \bassFigureExtendersOn, we need to tell LilyPond when we don't want an extender (by adding \! to the number) instead of telling when we want one.

I'm making a lot of errors because of this :( .

This should behave like the lyric extenders. With a similar syntax. I know that it's more tricky because we have parallel figures. Maybe a tilde would be better since "_" is used for the empty figure and tilde already exists in chords.

Something like this:

\figuremode{

<6+ 4 3>4 <4> <_+> <_!>2 <6>4 <6> <5>2~ <5>4 <5 3~>2 <6 3>4

}

We could get rid of figuredBassCenterContinuations too: <5~ 3~> <5 3> would mean two extenders while <5 3>~ <5 3> means one.

Regards,

Bertrand